Lumber-piling bar



Jan. 8, 1929. 1698,339

A. A. LUND LUMBER FILING BAR Filed March 28, 1927 2 Sheets-Sheet 1 INVENTOR illarul M ATTORNEY 'Jan. 8, 1929.

A. A. LUND LUMBER FILING BAR Filed March 28, 1927 2 Sheets-Sheet 2 INVENTOR AAlzuzcl A (L M'TORNEY Patented Jan. 8, 1929.

UNITED "STATES PATENT} oFr-lcE.

ARTHUR ABRAHAM LTIND, F SUSANVILLE, CALIFORNIA.

. LUMBER-Prairie BAR.

Application filed March 2a, 1927. serial No. 179,164.

seeks to provide a deviceof the character stated which includes 'a supporting member readily mounted upon to be supported by a part of the lumber being piled, and a swivelly mounted rest head upon. which a piece of lumber being piled is rested during the piling operation, said head having means to so engage the lumber as to prevent slip ping and yet not mar the same, and spring and weight balance features to always return said rest head to a desired normal position when not supporting lumber.

With the above and other objects in view that will hereinafter appear, the invention still further resides in the novel details of construction, combination and arrangement of parts, all of which will be first fully described then be particularly pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is a perspective view illustrating the invention in use.

Figure 2 isa side elevation of the invention.

Figure 3 is an inverted plan view.

Figure 1 is an end view.

Figure 5 is a detail perspective view of the rest head per se.

Figure 6 is adetail perspective view of the bifurcated swivel head.

Figure 7 is a detail perspective View of the retainer and stop cup.

a Figure 8 is a detail perspectlve view of the return spring. o i

In the drawlngs, in wlnch like numerals of reference indlcate' like parts in all of the f1gures, 1 is a support bar which is preferably constructed of a flat bar of metal and has one cud thereof wedge sharpened as at2to provide penetrating prongs for facilitating insertion of the said end between the boards of a'pile to mount the said bar somewhat in the manner illustrated in Figure 1 .of the drawings. To prevent inadvertent displacement of the bar when so mounted the'wedge shaped end thereof is provided at its top surface, with upwardly projecting prongs or barbs 3, sort 'ofsaw-tooth in shape, and directed in such manner that they will not appreciably hinder insertion of the bar end between boards ofa pile but any tendency toward inadvertent withdrawal of the said bar willbe thwarted by the said teeth 3 biting into the the board engagedthereby. I

The other end of the bar is twisted as at surface of '4 to present the flatsurfaces thereof in a vertical plane or at right angles to those of the portion 1 hereinbefore mentioned and is equipped with an enlarged bearing head 5 having a vertical central bore 6 therethrough to receive the shank 7 dependingfrom the b furcated swivel mounting member Sand provide a rotatable bearing therefor. 7

When the member 8 is mounted inand upon the bearing head 5 a bearingwasher 9 is interposed between the said parts and are tainer and stop cup 10 .is pin-secured as at 11 to the lower end of thejshank 7 to secure the said member 8 to position while permitting a degree of rotative. movement thereof for a purpose later to be described.

1 The cup member 10,-is provided with an upstanding flange 12 havinga portion thereof removed to provide an opening to permit rotative movement of the cup relatively to the endd of the supportbar 1 and stop shoulders 18 defining the said opening and adapted to engage the said bar end to limit the said movement. The-upstanding flange provides a hollow portion to accommodate the mounting of a coil spring 15, one end of'which is secured in the cup as at 16 and the other end of which may be secured as at 17 to the bar -norn1al position hereinafter described and to return the same to said normal position after being moved for purposes also later described. v

The ears of the bifurcated head 8 are apertured to receive a bearing pin 18 upon which horizontally rotatably mounted the rest head 19 which is cored .outjas at ,20 to so balance the said head upon its rotatable mounting that it will normally rest in the position illustrated in Figure 1 of the drawings with its flat or lumberiengaging face on avertical plane parallelthat on whichjthe flat sides of the bar portion 40 are presented or, in other words, in a plane. normal to the face of the lumber pile into which the mounting bar 1- is inserted.

The lumber engaging face of the head 19 is provided with a plurality of parallel equiclistantly spaced grooves 21 in which are inserted a plurality of anti-slip teeth 22 which those otalternate rows of which ared'irected in opposite directions in the manner shown in Figure of the drawings Thus, the said teethovercome any tendency of a boardslip-i ping oii the rest head in any direction.

The use of my improved pilingbar will be readilyunderstood to those skilled in the art and isclearlyillustrated in Figure 1 'otthe drawings fromwhich it will be observed that,

in order to pile boardsfrom the ground onto a pileof boards, orfrom a lower pile of boards onto a higher pile,- it is onlynecessary to elevate an end oftheboard so as to raise the same i l upon the rest head19fina substantiallybalancedmanner, when theboardmay beturned, usingthe rest head, in its horizontally rotatable manner, and its swivel mounting in the bcarmgihead 5, to facilitate the necessary rotative movement to bring the elevated end thereof up onto the top of the lumber being piled when it an easy matter to slide theboardup to its desired place upon the pile. The out outfportion of the cup 10 will permit the necessaryfrotation to accomplish the movement just described and, iu'unediate- H 1y upon removalof the board from its-supported position upon'therest head "19, the spring will act to return the rest head and its mountingdevices to thenormal position illustrated in FiguresZ, 3 and 4; ofvthedraw rom the foregoingdescription, taken in connection with theaccompanying drawings,

itisthought thenovel details of construction,

the manner of use and'the advantages of my :having' anlend adapted to be inserted into a lumber pile to cause said bar to project hori- Zontally from said pile,means*to hold said bar against shifting in the pile, and a rest head mounted on said bar bya universal connection.

wedge,anditceth projecting from the ban adjacent its insertedcjnd to bite into the ing'a supportingbaradapted to havejone' end inserted into to besupported bya lumber 2. A device of the class described comprising a supporting bar adapted to have one end inserted into to be supported by a lumber pile, a rest head swivelly mounted at the other end of saidbar, said inserted bar end being fiat- \visebevehsharpened to form an entering lumber of thepile and preventinadvertent displacement oi said inserted end.

3. A device of the class described compris pile,a rest head swivelly mounted at the other; end of said bar, said inserted bar end being fiatwise bevel-sharpened to form an.

entering wedge, and teeth projectingfrom the bar adjacent its inserted end to bite into the lumber of the pile andprevnt iriadvermember. s 1

8 .fA deviceofthe classdcscribedcomprising a flat bar having one end insertableinto a pile of lumberto forniza support andhavtent displacement of said insertedend, said teeth being, inclined in a manner facilitating insertion of said inserted end but to thwart inadvertent Withdrawal." s 4. A device of the class described comprising a supporting bar adapted to have one end inserted into to be supported by a lumber pile, arest head swivelly mounted at theother end of saidbar, said head beinghorizontally pivotally mounted on said swivel mounting,

andlweightbalanced to cause it normally to" I rest with itslumber engaging face vertical.

1 5. (A device of the class described comprisinga supporting bar adapted to have one'end inserted into to be supported by a lumber pile, a rest head swivelly mounted at the other a end of said bar, saidhead being horizontally pivotally mounted on said swivelmounting,

weight-balanced to cause itnormally torest with its lumber engaging face. vertical, and

anti-slipping teeth projectingin alternate directions from the lumber engaging face of.

said rest head. i

: c. A aeviceorumiass described m 1s,

ing a supporting baradaptedto have. one end inserted into toi bo supported by a lumber pile, a restheadsWivelly mounted at the other endof said bar, saidhead being horizontally pivotallymounted on said swivel mounting, weight-halanc'edto cause it nor mall'y to rest with its lumberengagingface vertical, and means including'aspring to normallyhold'the rest head swivel mounting to present the rest head lumber engaging ber pile which supports the device.

7. A device of the classdescribedcomprising, a flat bar having one end insertable into apile of lumber to form a-support'and having its other end twisted to present itsfiat faces vertically and equipped with an enlarged bearing headhaving, a iverticalbore a therethrough, abi'furcatedswivel mountlng face o'naplanenormal to the face of the lummember having a depending shankprojecting through the bearingl'head bore to swivel lymount said member, a retainer and stop cup secured on the projected end of said,

shank to secure the swivelmountingmemher and having means to lim t the "swivel 6 mounting movement, and a rest head "carried in the blfurcation ofthel swivel mounting ing its other end twisted to'present its flat iacevertically and equipped with an en- ,larged bearing head having a vertical bore therethrough, a bifurcatedswivel mounting member having a depending. shank proj ec'ting through thebearinghead bore-togswivelly mount said member, a retainer and stop cup secured on the projected end of said shankto securethe swivel mounting member and having means" to limit theswivel mount in movement, and a rest head carried in the bifurcation of the swivel mounting member,

and a coil sprlng coiled about the shank 1n the cup and having one end connected to the larged bearing head having a vertical bore therethrough, a bifurcated swivel mounting member having a depending shank pro ecting through the bearing head bore to swivelly mount said member, a retainer and stop cup secured on the projected end of said shank to secure the swivel mounting member and having means to limit the swivel mounting movement, a rest head carried in thebifureation of the swivel mounting member, and a coil spring coiled aboutthe shank in the cup and having one end connected to the cup andits other end connected to the bar and serving normally to hold the swivel mounting member in one position.

ARTHUR ABRAHAM LUND. 

